1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
pogonyaev
3 years ago
8

O que são processos físicos de separação das misturas? Dê 3 exemplos

Chemistry
1 answer:
chubhunter [2.5K]3 years ago
8 0

Answer:

Explanation:

The physical methods of separating mixtures are used in sorting a mixture of substances.

It requires no chemical changes occurring between their components and parts in any significant way.

Examples are:

  1. Decantation
  2. Filtration
  3. Sublimation
  4. Magnetism
  5. Centrifugation

The methods simply relies on the physical properties of matter.

You might be interested in
Which organisms in a population produces more offspring than can survive this is called
Harrizon [31]

Answer:

Biotic Potential

Explanation:

I googled it

8 0
3 years ago
Why do group 7 elements have higher melting and boiling points going down?
Genrish500 [490]

Answer:

this is because the van der waals forces or also known as induced dipole-dipole interactions increase because more electrons are present within an atom as you go down

Explanation:

-

8 0
3 years ago
How many molecules of N204 are in 85.0 g of N2O4?
alukav5142 [94]

Answer:

5.56 × 10^23 molecules

Explanation:

The number of molecules in a molecule can be calculated by multiplying the number of moles in that molecule by Avagadro's number (6.02 × 10^23)

Using mole = mass/molar mass

Molar mass of N2O4 = 14(2) + 16(4)

= 28 + 64

= 92g/mol

mole = 85.0/92

= 0.9239

= 0.924mol

number of molecules of N2O4 (nA) = 0.924 × 6.02 × 10^23

= 5.56 × 10^23 molecules

4 0
3 years ago
The radius of an indium atom is 0.163 nm. If indium crystallizes in a face-centered unit cell, what is the length of an edge of
adoni [48]

<u>Answer:</u> The edge length of the unit cell is 0.461 nm

<u>Explanation:</u>

We are given:

Atomic radius of iridium = 0.163 nm

To calculate the edge length, we use the relation between the radius and edge length for FCC lattice:

a=2\sqrt{2}R

Putting values in above equation, we get:

a=2\sqrt{2}\times 0.163=0.461nm

Hence, the edge length of the unit cell is 0.461 nm

8 0
3 years ago
1. _____ represents a formula for a chemical compound.<br> A.H<br> B.C<br> C.P<br> D.H2O
Drupady [299]
H2O represents a chemical compound
5 0
3 years ago
Read 2 more answers
Other questions:
  • Which of the following statements is not correct?
    6·1 answer
  • In the periodic table, the period number indicates
    8·1 answer
  • Which statement correctly describes the actual yield and the theoretical yield of a reaction?
    14·2 answers
  • Really need HElp with my chemistry question
    15·1 answer
  • Which statement correctly explains the polarity of the water molecule?. A) The hydrogen end of the molecule has a partial negat
    13·2 answers
  • Reread the poem by siegfried sassoon what does it suggest about the effects of trench warfare
    8·1 answer
  • How many atoms are present in 23.0 g of carbon?
    9·2 answers
  • A gas is initially at a pressure of 0.43 atm, and a volume of 11.7 liters. Then the pressure is raised to 3.61 atm and the volum
    12·2 answers
  • If I have 450 grams of iorn how many miles of it do I have
    11·1 answer
  • 13500 mL convert to milliliters of mercury
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!